Adjustable bed frame



FIG. 1 is a top plan view of a adjustable bed frame, showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is an end elevational view thereof from the bottom of FIG. 1;

FIG. 4 is an end elevational view thereof from the top of FIG. 1;

FIG. 5 is a side elevational view thereof from the left of FIG. 3;

FIG. 6 is a side elevational view thereof from the right of FIG. 3; and,

FIG. 7 is a perspective view thereof. 

The ornamental design for a adjustable bed frame, as shown. 